Microscopic World -1-
(Mysteries of Atomic World)
Part 4: Electrons and the Wave Nature

At the end
of the 19th century
and the beginning
of the 20th century,
a number of mysterious
phenomena which could not
be understood
with
the classical theoryconsisting of Newtonian mechanics
and Maxwellian electromagnetism
were discovered
one after another.
Thereby it was made clear
that the classical theory
had come to a deadlock.
Namely,
they just stood
at the dawn of the era
of a new theorycoming.